【juc】countdownlatch实现游戏进度

一、截图示例

二、代码示例

package com.learning.countdownlatch;import java.util.Arrays;
import java.util.Random;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;/*** @Author wangyouhui* @Description 游戏进度**/
public class Learning_02 {public static void main(String[] args) {System.out.println("游戏进度");CountDownLatch countDownLatch = new CountDownLatch(10);ExecutorService executorService = Executors.newFixedThreadPool(10);Random random = new Random();String[] array = new String[10];for (int i = 0; i < 10; i++) {int a = i;executorService.submit(()->{for (int j = 0; j <= 100; j++) {try {Thread.sleep(random.nextInt(100));} catch (InterruptedException e) {e.printStackTrace();}array[a] = j + "%";System.out.print("\r" + Arrays.toString(array));}countDownLatch.countDown();});}// 主线程等待try{countDownLatch.await();System.out.println("\n游戏开始");}catch (InterruptedException e){e.printStackTrace();}executorService.shutdown();}
}